package com.example.badmintonWeb.interceptor;

import com.example.badmintonCommon.util.JwtUtil;
import com.example.badmintonCommon.util.ThreadLocalUtil;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import java.util.Map;

//此方法用于对token令牌的验证以及放行操作
@Component
public class LoginInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        //令牌验证
        String token = request.getHeader("Authorization");

        try {
            //解析token中的信息
            Map<String,Object> claims = JwtUtil.parseToken(token);
            //信息存入线程中
            ThreadLocalUtil.set(claims);
            //放行
            return true;
        }catch (Exception e){
            response.setStatus(401);
            //不放行
            return false;
        }

    }
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        //清空ThreadLocal中的数据
        ThreadLocalUtil.remove();
    }

}
